What should I do if someone doesn't pay or answer the phone after delivering the goods to others?

Usually take a few fierce people to collect debts. But don't get into trouble. When someone goes to collect debts, he holds a board that says that if someone owes money and doesn't pay it back, he will stand at the door of that house, and then he won't want to do business. If you don't want to make trouble, go to Tianya forum, send a help post, talk about your hard work and helplessness, and ask people from all walks of life for help. Last time I saw a post, someone bought a mobile phone and was cheated by the store for more than 2000 yuan, so I posted a post for help. Later, when the store saw it, it was still bothering him, but netizens were on the buyer's side. Finally, the store felt guilty and returned the money in order to avoid affecting the business. And this old customer, you should also have his company name, phone number and so on. Just send him a text message or notify him online. If he refuses to pay back the money, you should expose him and his company's name on the Internet, report it to a reporter and let everyone know. At the same time, if you used qq or something to contact him before, and deliberately wrote on qq that a certain company owed money and didn't pay it back, let him see and know that you didn't pay it back, you would always give him "publicity". Anyway, if you really make up your mind not to retreat, you can rest assured that you will do your best to sing him black on the Internet. Of course, some things are even more outrageous. All his contact information, even his surname and identity, will be published and posted on the help sticker, and then a bunch of good people will call you to harass. But this trick is used too much, and I'm afraid there will be legal trouble, so I have to do it. Many people who pretend to be forced, such as those who beat dogs, beat people and send videos, apologized online within a few days after their names and phone numbers were announced, and some even came to the door to harass them. You can check a post on the Internet called "Brother Long owes me 500 yuan", that is, people who owe money post online for help, and a group of people call to find that "Brother Long". Also, there are some things that you can ask someone to do for you if you are too troublesome. He owes you 5,000 yuan. You can find some reliable people to help you ask for it, and promise to pay 1000 or even 3,000 yuan after getting it back. You would rather give the money to others than let it slip away. But don't look for the so-called "underworld", and it will be bad to be cheated again. Find some close friends, or invite reporters to write news.